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100 descendants and 100 ancestors of [bfefc575]

2015-11-09
12:33
Avoid unnecessary function prologues in the sqlite3VdbeAddOp3() routine. check-in: 7c6a19ba user: drh tags: trunk
02:08
Small size reduction and performance increase in the parser. check-in: d62cd757 user: drh tags: trunk
2015-11-07
18:32
Enhance the sqldiff utility to deal gracefully with ALTER TABLE ADD COLUMN. check-in: 7ea036ac user: drh tags: trunk
18:07
Fix a bug in CTE handling discovered by LibFuzzer that can cause an infinite loop in the query planner. check-in: 088009ef user: dan tags: trunk
17:51
Add test cases for WITH clauses. Closed-Leaf check-in: e7e65c75 user: dan tags: infinite-with-loop-bug
17:48
Proposed fix for an infinite loop bug in the WITH clause semantic analysis logic. check-in: 028475cb user: drh tags: infinite-with-loop-bug
15:19
Enhance TreeView to show WITH clauses. Add an assert to detect the infinite loop behavior when certain kinds of errors occur on a nested WITH clause. check-in: 2040d88e user: drh tags: infinite-with-loop-bug
01:57
Merge recent enhancements and fixes from trunk. check-in: 5429f99b user: drh tags: apple-osx
01:33
Merge recent enhancements and bug fixes from trunk. check-in: 78bc42e6 user: drh tags: sessions
01:19
The OPFLAG_SEEKEQ optimization is only applicable to equality comparisons against an index, not against a rowid table. check-in: 0f5b147d user: drh tags: trunk
00:51
Fix a harmless sanitizer warning in the ieee754 extension. check-in: dd9a26ec user: drh tags: trunk
2015-11-06
20:22
Avoid an unnecessary key comparison when doing an indexed lookup against an equality constraint. check-in: d741e1cc user: drh tags: trunk
20:13
Work around a sign-extension bug in the optimizer on the HP C compiler that comes with HP/UX. check-in: 46c36b15 user: drh tags: trunk
20:04
Test changes: Omit numindex1.test from valgrind, since valgrind uses a none-standard floating-point processor which gives inconsistent answers. Run one releasetest.tcl module using LONGDOUBLE_TYPE=double. check-in: d421efbf user: drh tags: trunk
19:53
Enforce consistent comparison results between integer and floating point values. Fix for ticket [38a97a87a6e4e83]. check-in: 849e686d user: drh tags: trunk
17:59
Merge the fixes and tests for the ieee754 extension. Closed-Leaf check-in: 7a9988d3 user: drh tags: int-float-precision
17:28
A proposed patch for working around a bug in the optimizer for the HP compiler found on HP/UX Itanium. Closed-Leaf check-in: 8a171548 user: drh tags: hp-optimizer-fix
17:01
Test cases for the ieee754 extension. check-in: 840cbda8 user: drh tags: trunk
14:59
A different approach to handling integer/float comparisons. This seems to work better on systems where "long double" and "double" are the same type, but still needs refinement and testing. check-in: a3f7614b user: drh tags: int-float-precision
12:50
Have fts5 load its configuration from the xConnect() method is invoked. This ensures that the very first query run uses the correct value of the 'rank' option. check-in: 33e6606f user: dan tags: trunk
04:14
More test cases for indexes on large numeric values. check-in: c220741a user: drh tags: int-float-precision
03:37
Some simple test cases from the mailing list. check-in: 1d642b73 user: drh tags: int-float-precision
01:04
Increase the precision of integer vs. floating-point comparisons. Candidate fix for ticket [38a97a87a6e4e8]. check-in: cfcaa0ff user: drh tags: int-float-precision
2015-11-05
22:30
Improvements and simplifications to the equality seek logic. Tests are adjusted so that they all pass now. Closed-Leaf check-in: 997ce6c9 user: drh tags: seekeq-experiment
21:49
Fix typo in help information for an FTS5 script. check-in: 777ae800 user: mistachkin tags: trunk
20:25
The top of an index equality loop normally starts with OP_SeekGE and OP_IdxGT. This check-in adds a flag to OP_SeekGE such that it fails immediately if the key is not equal, then jumps over the OP_IdxGT, saving a call to the key comparison functions. Consider this check-in a proof-of-concept. It needs improvement before going on trunk. Some tests fail, but only because they new use fewer key comparisons than expected (which is a good thing!). check-in: 32e31b9b user: drh tags: seekeq-experiment
18:09
Add the 'hashsize' configuration option to fts5, for configuring the amount of memory allocated to the in-memory hash table while writing. check-in: 44548009 user: dan tags: trunk
11:47
Remove a #pragma used to work around an issues with MSVC 2012 that has been overcome but subsequent changes. check-in: 8303e4cf user: drh tags: trunk
03:26
Remove #pragma that was used to work around an obsolete issue with MSVC 2012. Closed-Leaf check-in: b9b22fae user: mistachkin tags: reoptimizeArm
2015-11-04
22:31
Performance improvements in the getAndInitPage() routine of btree.c. check-in: 2aa50f6f user: drh tags: trunk
20:22
Rename the sqlite3PagerAcquire() function to sqlite3PagerGet(). The former macro called sqlite3PagerGet() has been removed. check-in: 708253be user: drh tags: trunk
16:34
In releasetest.tcl, run larger test first if --jobs is greater than 1. Run smaller tests cases first if --jobs is 1. check-in: 3fece5d0 user: drh tags: trunk
13:03
Exclude cffault.test and symlink.test from the (incompatible) inmemory_journal permutation. check-in: 4f16e968 user: drh tags: trunk
2015-11-03
23:39
Increase the fuzzcheck timeout when running valgrind. check-in: a5816877 user: drh tags: trunk
19:13
In 'e_uri.test', make sure all created test database files get deleted. check-in: 40c4f4a6 user: mistachkin tags: trunk
15:39
In the releasetest.tcl script, add the --progress option to cause the start of each subprocess to be shown. Otherwise, revert to the old-style display. Improvements to the handling of the --buildonly option. check-in: d969792f user: drh tags: trunk
15:16
In the releasetest.tcl script, show the --jobs object on the command-line summary. Report the time of each "starting:" event. Do not show errors on a --dryrun. check-in: b7510777 user: drh tags: trunk
14:49
Update the releasetest.tcl script so that it can run multiple tests in parallel in separate processes. check-in: e3de8291 user: drh tags: trunk
06:23
Further enhancement and a bit of cleanup. Closed-Leaf check-in: 0d8b5978 user: mistachkin tags: mp-releasetest
02:47
Use the native name for the MSVC makefile as well. check-in: e457c615 user: mistachkin tags: mp-releasetest
2015-11-02
23:29
Attempt to centralize and simplify the MSVC handling. check-in: 4ae96d6d user: mistachkin tags: mp-releasetest
23:21
Fix the backcompat.test module so that it does not try to compare against itself on windows. check-in: f625bce8 user: drh tags: mp-releasetest
21:05
Get things working better on Windows with MSVC. check-in: 22cc3e6c user: mistachkin tags: mp-releasetest
20:52
Fix the --dryrun option on the releasetest.tcl script. check-in: e565e026 user: dan tags: mp-releasetest
20:28
Fix releasetest.tcl so that it does not choke if a test fails so badly that there is no log file. Add the --jobs switch to the usage message. check-in: 20e96f52 user: dan tags: mp-releasetest
20:24
Fix releasetest.tcl so that output lines are less than 80 characters wide. check-in: aef177fe user: dan tags: mp-releasetest
18:57
Merge all recent enhancements and fixes from trunk. check-in: 0546d1cd user: drh tags: sessions
18:32
Add the "--jobs N" option to the releasetest.tcl script to allow tests to be run in parallel by N processes. N defaults to 1. check-in: 3d29f912 user: dan tags: mp-releasetest
15:10
Merge latest trunk changes, including the follow-symlinks functionality and 3.9.2 bugfixes, into this branch. check-in: 447521d7 user: dan tags: apple-osx
15:08
On unix, if a file is opened via a symlink, create, read and write journal and wal files based on the name of the actual db file, not the symlink. check-in: 6d5ce3ed user: dan tags: trunk
2015-11-01
21:19
If a table-constraint PRIMARY KEY lists a single column in single-quotes and that column has type INTEGER, then make that column an integer primary key, for historical compatibility. Fix for ticket [ac661962a2aeab3c331]. check-in: db319a03 user: drh tags: trunk
2015-10-31
17:58
On unix, if a file is opened via a symlink, create, read and write journal and wal files based on the name of the actual db file, not the symlink. Closed-Leaf check-in: c7c81050 user: dan tags: follow-symlinks
2015-10-30
20:54
Add mutex operations to test code in test3.c to avoid triggering assert() failures in certain configurations. check-in: 9f19420b user: dan tags: trunk
17:17
Merge the sqlite3_db_cacheflush() enhancements and other changes from trunk. check-in: f2cde4cf user: drh tags: begin-concurrent
16:50
Merge all the latest enhancements from trunk. check-in: 395a153f user: drh tags: sessions
16:37
Merge the 3.10.0 version number update from trunk. check-in: 980d6207 user: drh tags: apple-osx
16:36
Increase the version number to 3.10.0, due to the addition of the sqlite3_db_cacheflush() interface. check-in: 7565b046 user: drh tags: trunk
16:23
Merge latest trunk changes, including sqlite3_db_cacheflush(), with this branch. check-in: 6e4306ef user: dan tags: apple-osx
16:14
Add new API function sqlite3_db_cacheflush(). check-in: ad80d307 user: dan tags: trunk
14:28
Return immediately if sqlite3PagerWrite() is called when the pager is in PAGER_ERROR state. Closed-Leaf check-in: a6695b00 user: dan tags: cacheflush
14:25
Add the --enable-editline option to various autoconf scripts. check-in: 866f0277 user: drh tags: trunk
09:13
Test that calling sqlite3_db_cacheflush() does not interfere with savepoints. check-in: 0e09e4a2 user: dan tags: cacheflush
2015-10-29
21:11
Do not attempt to flush the pages of an in-memory database to disk if sqlite3_db_cacheflush() is called. check-in: 9b79a390 user: dan tags: cacheflush
20:57
Add a test case that calls sqlite3_db_cacheflush() on an in-memory database. check-in: f0cdfb54 user: dan tags: cacheflush
18:16
Avoid automatically rolling back the transaction if an SQLITE_IOERR or SQLITE_FULL error occurs within sqlite3_db_cacheflush(). check-in: 370b5d52 user: dan tags: cacheflush
14:29
The optimization on this branch is logically incorrect. It changes the return value of "SELECT 0 OR 'xyzzy'" FROM 0 to 'xyzzy'. Closed-Leaf check-in: a0c08d26 user: drh tags: simplify-or-clause
13:48
Fix uses of ctype functions (ex: isspace()) on signed characters in test programs and in some obscure extensions. No changes to the core. check-in: 34eb6911 user: drh tags: trunk
12:27
Apply optimizations to simplify OR clauses that contain constant terms. check-in: d533e23f user: drh tags: simplify-or-clause
01:11
Enhance comments in the MSVC batch build tool. check-in: 2964ce25 user: mistachkin tags: trunk
2015-10-28
20:01
Make the internal sqlite3PExpr() interface responsive to the TKFLG_DONTFOLD flag on the operator parameter. check-in: b10ab59f user: drh tags: trunk
19:46
Add experimental API sqlite3_db_cacheflush(). check-in: 65b86dc1 user: dan tags: cacheflush
16:05
Factor out adding NOT expression nodes in the parser into a subroutine. check-in: 00185418 user: drh tags: trunk
2015-10-27
20:04
Have contentless and external content fts5 tables ignore "OR REPLACE" conflict handling. check-in: a85c2a47 user: dan tags: trunk
17:48
Fix problems with prefix queries in fts5. check-in: 3b5758c6 user: dan tags: trunk
13:35
Provide hints to the storage engine using the sqlite3BtreeCursorHint() interface when compiling with SQLITE_ENABLE_CURSOR_HINTS. check-in: 45d3539e user: drh tags: trunk
13:24
Split out sqlite3BtreeCursorHintFlags() from sqlite3BtreeCursorHint() the interface for improved performance. Closed-Leaf check-in: b3ec9a0d user: drh tags: cursor-hints
2015-10-26
20:11
Merge the BTREE_FORDELETE enhancement with this branch. check-in: 20da0849 user: dan tags: cursor-hints
18:51
Merge in all trunk changes prior to the BTREE_FORDELETE enhancement. check-in: 53d5a4ad user: drh tags: cursor-hints
2015-10-16
20:53
Merge recent enhancements from trunk. Version now 3.9.1. check-in: 26fa091d user: drh tags: cursor-hints
2015-10-14
20:09
Merge in all the 3.9.0 updates from trunk. check-in: 29444149 user: drh tags: cursor-hints
2015-09-24
15:06
Merge trunk changes into the cursor-hints branch. check-in: fbe63762 user: drh tags: cursor-hints
2015-09-15
17:31
Merge enhancements from trunk. check-in: 66fe0683 user: drh tags: cursor-hints
2015-09-03
14:39
Merge enhancements from trunk. check-in: 25ee3000 user: drh tags: cursor-hints
2015-09-01
18:31
Merge enhancements from trunk. check-in: 29570a60 user: drh tags: cursor-hints
2015-08-20
23:45
Merge recent enhancements from trunk, including table-valued expressions. check-in: b9927c87 user: drh tags: cursor-hints
2015-08-18
15:58
Provide hints for all terms in a range constraint if there are any equality terms anywhere in the constraint. Range constraint terms are only omitted for a pure range constraint with no equality prefix. check-in: b5897bc0 user: drh tags: cursor-hints
2015-08-17
17:19
Avoid generating hints using constraints that are also used to initialize the cursor, since presumably the cursor already knows about those constraints. check-in: 142b048a user: drh tags: cursor-hints
2015-08-15
00:51
Change the display of the P4 operand of CursorHint in EXPLAIN output to function notation. check-in: bee73d42 user: drh tags: cursor-hints
2015-08-14
23:57
Always provide the BTREE_BULKLOAD hint, even when SQLITE_ENABLE_CURSOR_HINTS is not defined, as that hint gives a 4% performance increase. check-in: 83a84435 user: drh tags: cursor-hints
20:08
Updated testing of cursor-hints. Remove the test_cursorhint.c file and associated logic in the core and do tests based purely on the newly enhanced EXPLAIN output. check-in: bf383e66 user: drh tags: cursor-hints
18:50
Fix the cursor hint mechanism so that it does the right thing for indexed lookups. check-in: 581e3d49 user: drh tags: cursor-hints
15:05
Refactor the sqlite3BtreeCursorHint() interface for improved maintainability. check-in: fc3fb5cd user: drh tags: cursor-hints
01:03
Fix the CursorHint so that it includes the scan boundary constraints. On the expression text for the CursorHint opcode, show rowid correctly. check-in: f0d428d1 user: drh tags: cursor-hints
2015-08-13
21:43
Convert the hint expression of the CursorHint opcode into a string for display by EXPLAIN. Leaf check-in: 12640cb2 user: drh tags: cursor-hints-displayP4
21:38
Fix a harmless compiler warning. check-in: 608ab4ac user: drh tags: cursor-hints
21:32
Convert the hint expression of the CursorHint opcode into a string for display by EXPLAIN. check-in: 20688471 user: drh tags: cursor-hints
20:34
Fix a bug in sqlite3ExprContainsSubquery(). check-in: be254715 user: drh tags: cursor-hints
20:07
Merge in all the trunk changes from the previous year. This breaks the cursor-hint mechanism, but provides a baseline for trouble-shooting. check-in: 82a7a61b user: drh tags: cursor-hints
2014-07-15
11:59
Add simple tests for new sqlite3BtreeCursorHint() functionality. check-in: 1efa6ed5 user: dan tags: cursor-hints
2014-07-14
19:04
In the expression passed to sqlite3BtreeCursorHint() for the inner loops of joins, replace any TK_COLUMN references to columns in the outer loops with TK_REGISTER expressions (Expr.iTable indicates the specific register containing the value). There are no automated tests for this yet. check-in: f9dddd00 user: dan tags: cursor-hints
2013-12-07
23:35
Do not allow cursor hints to use expressions containing subqueries. This change fixes the problem seen in the previous check-in. check-in: bfefc575 user: drh tags: cursor-hints
20:39
If the SQLITE_ENABLE_CURSOR_HINTS macro is defined, then invoke the sqlite3BtreeCursorHint() interface to provide hints to the storage engine about rows that need not be returned. Hints can be disabled using SQLITE_TESTCTRL_OPTIMIZATIONS with SQLITE_CursorHints (0x2000). Cursor hints are not used by the built-in storage engine of SQLite but might be useful to applications that provide their own storage engine. The current code is work-in-progrss and contains bugs. check-in: 3a9bec52 user: drh tags: cursor-hints
17:01
Increase the version number to 3.8.3. check-in: 23d00f22 user: drh tags: trunk
16:56
At the start of each journaled write transaction, check to see if the database file has been moved, and if it has refuse to start the transaction, returning an SQLITE_READONLY_DBMOVED error code. Writing to a moved or renamed database is still allowed when journal_mode is OFF or MEMORY. check-in: 369a23e0 user: drh tags: trunk
16:45
Back out the new device capability. The determination of whether or not a file has moved is now done strictly using a file-control. Closed-Leaf check-in: 9c59f5af user: drh tags: detect-moved-db
12:29
Actually look at i-node numbers to determine whether or not the database file has moved. check-in: 2b1884dc user: drh tags: detect-moved-db
2013-12-06
23:25
Performance optimization to the moveToRoot() subroutine in btree.c. check-in: b5842a70 user: drh tags: trunk
22:45
Use memcmp() instead of the BINARY collating function where possible, for a performance boost. check-in: c5a3a1af user: drh tags: trunk
22:44
Remove some commented-out code from sqlite3BtreeMovetoUnpacked() to try to make it more readable. check-in: 2d62d113 user: drh tags: trunk
19:58
Add the SQLITE_READONLY_DBMOVED error code to the sqlite3ErrName() function. check-in: 7789f801 user: mistachkin tags: detect-moved-db
17:23
Only error out on a database file move when attempting to start a write transaction. Assume read transactions are still safe. And make the error SQLITE_READONLY_DBMOVED instead of SQLITE_IOERR_NODB. check-in: 28348f2a user: drh tags: detect-moved-db
15:37
Add code to detect if the database file is moved or deleted out from under SQLite and return an SQLITE_IOERR_NODB. check-in: 8759a8e4 user: drh tags: detect-moved-db
14:53
Version 3.8.2 check-in: 27392118 user: dan tags: trunk, release, version-3.8.2
2013-12-05
17:12
Fix harmless compiler warnings and improve the MSVC makefile. check-in: c6325670 user: drh tags: trunk
16:41
Fix two potential (and apparently harmless) shift overflows discovered by the -fcatch-undefined-behavior option of clang. check-in: e19eead8 user: drh tags: trunk
2013-12-03
23:33
Make use of the CC nmake macro even when cross-compiling (with MSVC). Closed-Leaf check-in: aae7b30e user: mistachkin tags: memTests
22:33
Fix harmless compiler warnings. check-in: a12d214e user: mistachkin tags: memTests
22:32
Add memory subsystem related defines to the compile-time options list. check-in: 52a44146 user: mistachkin tags: memTests
19:49
Remove a branch in STAT4 logic that is no longer reachable after the previous change. check-in: eca7d3f1 user: drh tags: trunk
19:16
Fix a possible (and probably harmless) uninitialized variable in STAT3/4. check-in: 33ad4f91 user: drh tags: trunk
18:26
Fix an alignment problem in the stat3/stat4 code affecting 32-bit platforms. check-in: 14f9bc79 user: dan tags: trunk
17:09
Fix a typo in fts3varint.test preventing the valgrind permutation test from running. check-in: b654a4ec user: dan tags: trunk
10:35
Modify test file conflict2.test so that it works with the "inmemory_journal" permutation. check-in: e4164fd8 user: dan tags: trunk
10:14
Remove an unnecessary branch from the UPDATE logic - one that was also unreachable except following an OOM on x64. check-in: 72f97277 user: drh tags: trunk
09:49
Add a "database_may_be_corrupt" directive to test file fuzz3.test. Reformat an assert() statement in vdbeaux.c to make its intent clearer. check-in: 9d8a0e13 user: dan tags: trunk
02:52
Change some unreachable test conditions to NEVER(). check-in: 7d99858b user: drh tags: trunk
00:11
Fix a harmless compiler warning on MacOS. check-in: 74328de1 user: drh tags: trunk
2013-12-02
21:25
Another #if SQLITE_VERSION_NUMBER macro in speedtest1.c for compatibility with older versions of SQLite. check-in: bc8eacc7 user: drh tags: trunk
01:24
Still more #if SQLITE_VERSION_NUMBER macros in test/speedtest1.c to enable compilation against older versions of SQLite. check-in: 4b20cf42 user: drh tags: trunk
2013-12-01
18:10
Add some #if SQLITE_VERSION_NUMBER macros to test/speedtest1.c in order to make it compatible with older versions of SQLite so that it can be used for historical speed comparisons. check-in: a9e1627a user: drh tags: trunk
01:18
Fix typos in the header comment on the sqlite3Atoi64() routine. check-in: c85e0c54 user: drh tags: trunk
2013-11-30
12:49
Detect a corrupt UnpackedRecord and return SQLITE_CORRUPT prior to calling sqlite3BtreeMovetoUnpacked(). check-in: 55ec474d user: drh tags: trunk
2013-11-29
15:39
Change the name of the CORRUPTIBLE macro to CORRUPT_DB. check-in: f865be10 user: drh tags: trunk
15:06
Add a new sqlite3_test_control() that indicates that database files are always well-formed. Use this during testing to enable assert() statements that prove conditions that are always true for well-formed databases. check-in: 15e4f63d user: drh tags: trunk
2013-11-28
19:28
Update a few test cases to account for the new error message formats. check-in: 65a5bce3 user: dan tags: trunk
14:14
Remove an assert() condition that may not be true if the database file is corrupt. Update a test case in corruptC.test. check-in: 0bcf7551 user: dan tags: trunk
06:17
Fix a test case in temptrigger.test so that it works in auto-vacuum mode. check-in: c3b7a0e6 user: dan tags: trunk
2013-11-27
21:07
Remove unnecessary local variables from sqlite3VdbeExec() in order to reduce stack-space requirements of that routine. check-in: 81891288 user: drh tags: trunk
19:17
Update documentation of sqlite3_column() for clarity. Update evidence marks on test cases. check-in: ec2d47a1 user: drh tags: trunk
18:00
Fix spelling typo in speedtest1.exe. check-in: ae90300e user: mistachkin tags: trunk
14:50
Fix some harmless compiler warnings in speedtest1.exe. check-in: c75f561f user: drh tags: trunk
13:48
Additional test cases for skip-scan. check-in: ce70803f user: drh tags: trunk
13:24
Make sure the colWidth array is correctly initialized in the ".explain" command of the shell. check-in: ceebcdca user: drh tags: trunk
04:22
Lower the threshold for using skip-scan from 50 to 18, based on experiments that show that 18 is the approximate break-even point for a variety of schemas. check-in: 83c0bb99 user: drh tags: trunk
04:00
Avoid using the GetVersionEx functions if they are considered deprecated. check-in: afdca299 user: mistachkin tags: trunk
03:01
Avoid using the GetVersionEx functions if they are considered deprecated. Closed-Leaf check-in: 0ea9e472 user: mistachkin tags: vs2013
01:23
Add additional test cases for skip-scan. check-in: 1ae4915d user: drh tags: trunk
00:45
Add additional test cases and requirements evidence marks for WITHOUT ROWID. check-in: b408d788 user: drh tags: trunk
2013-11-26
23:27
Make sure the update hook is not invoked for WITHOUT ROWID tables, as the documentation specifies. This bug was found while adding requirements marks, so a few extraneous requirements marks are included in this check-in. check-in: 0978bac6 user: drh tags: trunk
22:46
Add requirements test cases for determining when an expression is true and when it is false. check-in: 838654e5 user: drh tags: trunk
21:18
Changing the CAST behavior of REAL values actually changed a documented requirement. So we also have to change the requirement evidence text to match. check-in: d84aa44e user: drh tags: trunk
18:22
Reduce the amount of code used to implement OP_SeekGe and similar. check-in: 8b12a15a user: dan tags: trunk
16:51
Fix a possible NULL pointer deference in the wordcount test program. check-in: 6f91dca0 user: drh tags: trunk
16:48
Change tclsqlite3.c so that it never invokes ctype macros with signed character arguments. check-in: c07caabf user: drh tags: trunk
16:20
Do not try to run the atof1.test test script on ARM hardware which lacks the "long double" type. check-in: fafca560 user: drh tags: trunk
15:45
Change the REAL-to-INTEGER casting behavior so that if the REAL value is greater than 9223372036854775807.0 then it is cast to the latest possible integer, 9223372036854775807. This is sensible and the way most platforms work in hardware. The former behavior was that oversize REALs would be cast to the smallest possible integer, -9223372036854775808, which is the way Intel hardware works. check-in: 6f53fc71 user: drh tags: trunk
00:28
Better support for UTF-8 paths on Cygwin. check-in: 9954327c user: mistachkin tags: trunk
2013-11-25
23:42
Add SQLITE_CONFIG_WIN32_HEAPSIZE option to configure the maximum isolated heap size on Windows. check-in: 914e6c9d user: mistachkin tags: trunk
22:24
Change a while-loop into a do-loop in sqlite3VdbeRecordCompare() and add an assert() to verify that the do-loop really is appropriate. This gives about a 10% performance boost in that routine, or a 0.9% boost overall. check-in: 011a6be4 user: drh tags: trunk
21:49
Clarify docs for the SQLITE_CONFIG_WIN32_HEAPSIZE option. Closed-Leaf check-in: 51e87607 user: mistachkin tags: winHeapSize
21:41
Remove a NEVER() from a branch that is now reachable during OOM faults. check-in: 18bdcb05 user: drh tags: trunk
20:50
Optimizations to the sqlite3BtreeMovetoUnpacked() routine in storage engine making it about 17.8% faster, which in turn makes SQLite over 1.2% faster overall. check-in: 032e8993 user: drh tags: trunk
20:14
Return an SQLITE_CORRUPT error if the content size field of a table record extends off the end of a page. Closed-Leaf check-in: b48c4e40 user: drh tags: btree-optimization
17:38
Uses shifts rather than division for arithmetic on the cell indices, since those indices are always non-negative. check-in: 5bf2a3fe user: drh tags: btree-optimization
16:52
Optimize the skipping of the payload size field when doing a binary search for a rowid. check-in: 55e5bfa2 user: drh tags: btree-optimization
16:23
Arrange for sqlite3BtreeMovetoUnpacked() to always leave the cursor cell parse cache invalidated. This fixes issues with previous check-ins on this branch and also runs faster. check-in: a7467560 user: drh tags: btree-optimization
15:01
More optimizations to sqlite3BtreeMovetoUnpacked(). But there are failures in TH3. Committing this intermediate state to facilitate bisecting. check-in: f80497be user: drh tags: btree-optimization
14:10
More improvements to sqlite3BtreeMovetoUnpacked() performance. check-in: 88680698 user: drh tags: btree-optimization
02:38
Performance improvements in sqlite3BtreeMovetoUnpacked(). check-in: d0fb7ace user: drh tags: btree-optimization
2013-11-24
23:18
Better support for UTF-8 paths on Cygwin. Closed-Leaf check-in: 484162b6 user: mistachkin tags: cygUtf8
01:14
Add the --scratch parameter to speedtest1. Improved error messages when misconfiguring memory parameters in speedtest1. check-in: 8f3c767a user: drh tags: trunk
00:46
The MEMSYS5 algorithm does not have to return the block with the lowest address. Any block of the appropriate size will do. Use the first block found on the freelist for the appropriate size for a performance improvement. check-in: 12e612e8 user: drh tags: trunk
2013-11-23
22:45
A much simpler fix is to simply change MEMSYS5 so that it takes any free block of the appropriate size (the first on the list of free blocks) rather than searching for the one with the smallest address. This is also faster than using the min-heap algorithm. Need to research to verify that the allocator still satisfies the Robson proof, however. Closed-Leaf check-in: 8191b512 user: drh tags: memsys5-performance
21:29
Add newlines at the end of some error messages in speedtest1. check-in: 6b98f0af user: drh tags: trunk
11:45
Report errors from sqlite3_exec() and sqlite3_config() in speedtest1. Fix a bug in the main testing logic that was found by these error reports. check-in: 659f1a98 user: drh tags: trunk
04:32
Fix the order of parameters to SQLITE_CONFIG_PAGECACHE in the speedtest1.exe program. check-in: dbe85ef6 user: drh tags: trunk
04:22
Adjust MSVC makefile to avoid using forward slashes in file names. check-in: facf6dea user: mistachkin tags: trunk
04:16
Add the "speedtest1.exe" test program. check-in: fb6f0c6d user: drh tags: trunk
00:27
Add experimental sqlite3_config option to control the native Win32 heap size. check-in: f09f11e9 user: mistachkin tags: winHeapSize
2013-11-22
21:32
Fix harmless compiler warning. check-in: f336c18f user: mistachkin tags: trunk
00:49
Minor correction to the batch build tool for MSVC. check-in: 22144c9d user: mistachkin tags: trunk
2013-11-21
23:37
Fix a harmless clang warning in the command-line shell. check-in: 3d47a556 user: drh tags: trunk
22:02
Slight change to the --timer output on wordcount for better display on windows: Avoid showing the full pathname of the executable. check-in: b9e047b9 user: drh tags: trunk
21:59
Changes some offset and amount parameters from "int" to "u32" to avoid harmless signed/unsigned comparison warnings. check-in: 4e8c5d07 user: drh tags: trunk
21:40
Modify wordcount so that timer information appears on standard error instead of standard output. Rename the run-wordcount.bash script to run-wordcount.sh and simplify it so that it stands a better chance of running on non-GNU systems. check-in: 586c11ed user: drh tags: trunk
21:23
Do not reuse factored constants that might have had their encodings changed. check-in: 487f2036 user: drh tags: trunk
20:48
Fix the code generator to honor turning off constant expression factoring. check-in: 88262266 user: drh tags: trunk
19:27
Add the --timer option to the wordcount test program. check-in: a89fdf87 user: drh tags: trunk
19:05
Remove a test from sqlite3VdbeMemFromBtree() which was unnecessary, and after the recent OP_Column refactoring, unreachable. check-in: 23667f3b user: drh tags: trunk
17:24
Make sure the OP_Next and OP_NextIfOpen opcodes are numbered close together for efficiency in switch() statements. OP_Prev and OP_PrevIfOpen too. check-in: d4ccf0f5 user: drh tags: trunk
16:08
When one or more arguments to a function are constants, try to factor out just those arguments into initialization code. check-in: 50d350ab user: drh tags: trunk
14:44
Remove the obsolete TK_CONST_FUNC token type. check-in: 9b4217f0 user: drh tags: trunk
14:33
Add the ability to factor constant functions out of inner loops. But do not factor out non-constant functions, like random(). check-in: 1b0f779e user: drh tags: trunk
04:18
Another improvement to OP_Function and an improvement to OP_Move. check-in: 70b056fb user: drh tags: trunk
03:43
A simple change to the OP_Function opcode improves overall performance by about 0.5%. check-in: b890eefd user: drh tags: trunk
03:12
Performance optimization to the OP_Next and OP_Prev opcodes. check-in: ecaac28a user: drh tags: trunk
01:33
Refactor the OP_Column opcode to make it clearer and easier to maintain. Overall, performance tests show about a 1% speed increase with this change. check-in: 972881c6 user: drh tags: trunk
01:04
Reduce the size of VdbeCursor again, this time without a performance hit. Closed-Leaf check-in: 93393993 user: drh tags: OP_Column-refactor
00:10
Unpack some fields, adding some space back to the VdbeCursor object, in order to help the code to run a little faster. check-in: f8d5efcd user: drh tags: OP_Column-refactor
2013-11-20
21:51
Reduce the size of the VdbeCursor object from 144 to 120 bytes. check-in: 5f9d5068 user: drh tags: OP_Column-refactor
20:58
Improved comments on the OP_Column changes. Optimize out loading of overflow pages for content with zero length. Add test cases for the latter. check-in: 0e05679d user: drh tags: OP_Column-refactor